LD39030DTPU105R ST LDO Voltage Regulator | 4-DFN(1x1) | 1.05V Output, 300mA

Product Overview

The LD39030DTPU105R from STMicroelectronics is a high-performance, low-dropout (LDO) voltage regulator designed for space-constrained applications. Housed in a compact 4-lead DFN package measuring 1x1 mm, it delivers a fixed output voltage of 1.05V with a maximum output current of 300mA. This device combines low quiescent current, high PSRR, and excellent transient response, making it ideal for powering sensitive analog and digital circuits in portable and battery-powered equipment.

Detailed Technical Specifications

Key Features

• Ultra-low dropout voltage: 200mV at 300mA load
• Low quiescent current: 30µA typical
• High PSRR: 70dB at 1kHz
• Low output noise: 30µVrms
• Stable with ceramic capacitors (1µF)
• Current limit and thermal protection
• Enable logic control
• RoHS compliant and halogen-free

Target Applications

• 5G base station power management (e.g., powering RF transceivers)
• Automotive dashboard displays and infotainment systems
• Portable medical devices (e.g., glucose meters, pulse oximeters)
• Wearable electronics (smartwatches, fitness trackers)
• IoT modules and sensors
• Battery-powered equipment requiring low quiescent current

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for LD39030DTPU105R. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• BOM Kitting & Sampling Services: Specialized sourcing for testing samples and urgent shortage components.

Quality Assurance & Compliance

Jasin Chip guarantees that all delivered products are 100% original factory stock with full quality assurance and traceability.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

LD39030DTPU105R 是意法半導體（STMicroelectronics）推出的一款高性能低壓差線性穩壓器（LDO），專為空間受限的應用設計。採用緊湊的 4 引腳 DFN 封裝（1x1 mm），提供 1.05V 固定輸出電壓，最大輸出電流 300mA。該器件結合了低靜態電流、高電源抑制比（PSRR）和出色的瞬態響應，非常適合為可攜式和電池供電設備中的敏感類比和數位電路供電。

詳細技術參數

核心特性

• 超低壓差電壓：300mA 負載時僅 200mV
• 低靜態電流：典型值 30µA
• 高 PSRR：1kHz 時 70dB
• 低輸出噪聲：30µVrms
• 與陶瓷電容（1µF）穩定工作
• 電流限制和熱保護
• 使能邏輯控制
• 符合 RoHS 標準，無鹵素

典型應用場景

• 5G 基站電源管理（例如為射頻收發器供電）
• 汽車儀表板顯示和資訊娛樂系統
• 可攜式醫療設備（如血糖儀、脈搏血氧儀）
• 可穿戴電子產品（智慧手錶、健身追蹤器）
• 物聯網模組和感測器
• 需要低靜態電流的電池供電設備

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 LD39030DTPU105R 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 全天候環球客戶支援：專業團隊為您提供即時報價及技術支援，無需漫長等待。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

Jasin Chip 承諾所有出貨產品均為原廠正貨，具備完善的品質保證及產品可追溯性。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]